Electrode and electrode holder



April 29, 1924. 1,492,167 R I J.E.GRANGER ELECTRODE AND ELECTRODE HOLDER Original Filed Oct. 10, 1.922

Patented Apr. 29, 1924.

UNITED STATES 1,492,167" PATENT OFFICE.

JOSEPH E. GRANGER, F ALHAMBRA, CALIFORNIA.

ELECTRODE AND ELECTRODE HOLDER.

Original application filed October 10, 1922, Serial No. 593,488. Divided and thil application flled September 11, 1923. Serial No. 662,061.

To all whom it may concern:

Be it known that I, J osErH E. GRANGER,

a citizen of the United States, residing at Alhambra, in the county of Los Angeles and State of California, have invented certain new and useful Improvements in Electrodes and Electrode Holders, of which the following is a specification.

This invention relates to electrodes and electrode holders used for electric arc welding and refers more particularly to an electrode and holder therefor which is capable of use with automatic and semi-automatic operating apparatus.

This ap lication is a division of my application er. No. 593,488, filed October 10, 1922, electrode and electrode holders for electric arc welding.

With the devices heretofore in use it has been diflicult to feed and guide the electrode in a straight line toward the weld and such devices are generally more or less complicated and very inconvenient in use for the reason that the feeding and guiding mechanism is generally positioned directly over or opposite the weld thus enabling the electrode to be brought into a position substantially vertical to the surface of the weld.

It is therefore the primary object of this invention to provide an electrode and electrode holder of such construction that that portion of the electrode which lies adjacent to the arc may be substantially vertical to and directly over the work although the feeding and guiding elements are positioned at one side, thus permitting a clear view of the work by the operator.

Other objects and advantages will be aparent from the following description taken in conjunction with the accompanying drawings in which:

Figure 1 is a side elevation of the invention, and

Figure 2 is a perspective view of the electrode.

Referring now more particularly to the drawings the numeral 1 indicates a support which has rigidly mounted thereon, a screw 2 provided with an exterior thread 3. Mounted for longitudinal movement on said screw is a spindle 4 having internal threads adapted to cooperate with the thread 3.

Secured to the spindle 4 in any suitable manner so as to be removable therefrom if desired is the electrode 5.

As can be clearly seen in the drawings the electrode 5 is formed of a plurality of convolutions, thus forming a spiral. By spiral I mean an electrode which is of curved form throughout its length and at the place where the arc is formed, in contradistmction to an electrode which is straight as it approaches the arc although it may be wound on a reel or the like before it is straightened to approach the work.

The numeral 6 indicates the work and the numeral 7 indicates suitable electric connections all of which are well known in the art and form no part of the present invention. It is to'be understood that the turning of the spindle 4 may be produced by means of a weight 8, attached to a cord 9, which cord is secured to and wra ped around the reduced end 10 of the spindle, or by any other suitable means desired, such means being so constructed as to maintain the end of the electrode and the work in proper spaced relation, but such means not forming the subject matter of the invention, the same are not shown.

As before mentioned, the electrode 5 is arranged coaxially with and is detachably mounted upon the spindle and the pitch of the convolutions of the electrode 5 and that of the thread 3 on the screw 2, correspond so that an even and steady feed of the electrode is produced.

lVhile I have shown and described a feed for moving the electrode toward its work it is perfectl possible however to feed the work towar the electrode while the electrode is being fed or being held stationary, all within the spirit of this invention.

I desire it further understood that in addition to the normal movement of the electrode toward the work it is possible to so mount the support 1 that the electrode may be moved longitudinally or otherwise with its spindle with respect to the work and that the work may be fed in any manner to obtain successful operation of the electrode, all within the spirit of this invention.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. An electrode for electric arc formed into the shape of a spiral.

2. Welding apparatus including as an element an electrode resembling a spiral having one end adapted to be placed in juxtawelding position to the work and means having a revolving and longitudinal movement around and along the axis of the spiral for feeding said electrode to its work.

3. Welding apparatus comprising a sup port, a screw secured thereto, a spindle movable longitudinally on said screw and a spiral electrode secured to said spindle, theed to be adjusted at one end in juxtapositiom ture.

' to its work by a turning movement about said axis.

5. Welding alpparatus includin as an element a spira e ectrode positione concentrically in ali ment with an axis, and adapted to be 8d]l1St0d at one end in juxtaposition to its work by a turning movement of said axis.

6. Welding ap aratus including as an element a spiral e ectrode adapted to be adjusted at one end in juxta osition to its work and a holder upon whic said electrode is mounted, ada ted to vertically feed said spiral electro e to its work by a turning movement of the electrode.

In testimony whereof I afiix my signa- JOSEPH GRANGER. 

